Analysis and Elimination of Gas Relay Misoperation

LI Lu; CHEN Zheng-ming; KUANG Shi; XU Dong-sheng

您当前的位置：

首页 >

文章列表页 >

Analysis and Elimination of Gas Relay Misoperation

更新时间：2025-04-26

- Analysis and Elimination of Gas Relay Misoperation
- High VoltageApparatus Vol. 45, Issue 6, Pages: 145-147(2009)
- 作者机构：
  
  河南郑州供电公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM586
- Published：2009
- 稿件说明：
移动端阅览
[1]李璐,陈正鸣,邝石,许东升.气体继电器误动作分析及处理[J].高压电器,2009,45(06):145-147.

LI Lu, CHEN Zheng-ming, KUANG Shi, et al. Analysis and Elimination of Gas Relay Misoperation[J]. High voltageapparatus, 2009, 45(6): 145-147.
[1]李璐,陈正鸣,邝石,许东升.气体继电器误动作分析及处理[J].高压电器,2009,45(06):145-147. DOI：

LI Lu, CHEN Zheng-ming, KUANG Shi, et al. Analysis and Elimination of Gas Relay Misoperation[J]. High voltageapparatus, 2009, 45(6): 145-147. DOI：

摘要

气体继电器保护是电力变压器的一种基本保护。如何正确选型、使用和维护有一定现实意义。以河南郑州供电公司一起220 kV变压器进口双浮球气体继电器误动作为实例进行了分析

叙述了气体继电器的动作原理

对这次误动作的具体原因做了详细分析

得出了人民2号主变重瓦斯动作是由于双浮球气体继电器反向动作起动值低

在小油流冲击下误动作的结论

并进行了相应试验予以验证。总结提出了电力企业在进行气体继电器选型、验收和校验的注意事项:加强变压器附件的选型、验收等工作;新安装的气体继电器、压力释放装置和温度计等须经校验合格后方可使用;在高温负荷到来之前

应对主变压器特别是室内变压器的散热器进行清理清洗工作

并加强运行巡视。

Abstract

This paper analyzes a misoperation case of double-floating ball gas relay of a 220 kV transformer in Zhengzhou Power Supply Company

Henan Province.The operation mechanism of the gas relay is described

and the cause of this misoperation is discussed.The misoperation is found to be due to lower reverse start value of the double-floating ball gas relay

leading to its misoperation under impact of small oil flow.A test is conducted to verify this conclusion.Some suggestions about selection

acceptance and checkout of gas relay are offered:1) Pay more attention to the selection and acceptance of transformer accessories.2) The newly installed gas relay

pressure release device

and thermometer

etc.should be checked before putting them into operation

e.g.

double-contact gas relay needs the reverse operating test.3) The radiators of main transformer

specially of indoor transformer ought to be cleaned before high-temperature load.4) During the period of high-temperature load

monitoring of transformer and its oil level must be carried out

and aeration and heat dissipation of indoor transformer be strengthened.

关键词

Keywords

references

Views

200

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis on Misoperation Reasons of 500 kV Transformers Gas Relay

Prediction Model for Dissolved Gas in Transformer Oil Based on Policy Gradient Optimization

Research on Hybrid Finite Element Method Based on Triangle Mesh and Its Application in Fluid-heat Coupled Calculation of Transformer

Vibration Sound Power Measurement Method of UHV Transformer Based on Location of Main Vibration Point

Research on Multi-source Information Fusion Fault Diagnosis of Transformer Based on KPCA-SVM

Related Author

ZHONG Tian-xiang

JIN Shu-jun

TANG Jian

HOU Huijuan

WANG Shaojing

REN Maoxin

SHENG Gehao

JIANG Xiuchen

Related Institution

Yuhuan Power Plant,Huaneng Power International INC,Yuhuan

Department of Electrical Engineering, Shanghai Jiao Tong University

State Grid Shanghai Electric Power Research Institute

Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University

Institute of Electrical Engineering Chinese Academy of Sciences

⁰